Calculating-machine.



S. E. CARLIN.

CALCULATING MACHINE.

APPLICATION FILED MAYIO, 1910.

Patented Aug. 13, 1918,

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s. EQGARLIN. CALCULATING MACHINE. APPLICATlDN HLED MAY 10. BIO-?SHEETSSHEET 2- Patentd Aug. 13,1918.

s. 5.0mm. CALCULATING MACHINE.

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CALCULATING MACHINE. APPLICATION FILED MAYYIO, 1910.

1,275,528. I I Patented Aug. 13, 1918.

7 SHEETSSHEET 4- CALCULATING MACHINE APPLICATION FILED MAY 10, 19x0.

' Patented Aug. 13, 1918.

ISHEETS-SHEET 5.

S. E. CARLIN.

CALCULATING MACHINE.

APPL|-AT|ON FILED MAY 10. 1910.

1,275,528. Patented Aug. 13, 1918.

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CALCULATING MACHINE.

APPLICATlON FILED MAY 10. 1910.

Patented Aug. 13, 1918 7SHEETSSHEET 7.

# zwwm m. Pum umo" WASNIN UNITED STATES PATENT OFFICE.

SAMUEL E. CAR/LIN, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS,TO UNDERWOOD COMPUTING MACHINE COMPANY, OF NEVJ YORK, N. Y., A CORPORA-TION OF NEW YORK.

CALCULATING-MACHINE.

Specification of Letters Patent.

Patented Aug. 13, 1918.

Application filed May 10, 1910. Serial No. 560,444.

To all whom it may concern:

Be it known that I, SAMUEL E. CARLIN,

a citizen of the United States, residing at Chicago, in the county ofCook and State of Illinois, have invented certain new and usefulImprovements in Calculating-Machines, of which the following is aspecifica tion.

This invention relates to improvements in calculating machines of thetype illustrated in my application for United States Letters Patent,Serial No. 547,300 filed March 4, 1910, and in which application thereis shown and described an improved calculating attachment fortypewriting machines embodying registering mechanism comprisingregisters or totalizers and traveling actuating means therefor, whichactuating means is adapted to be moved. into and out of operativeposition with relation to the register and in a direction transverse tothe axis of the operating mechanism and to be advanced to change itsdenominational re lation to the number bearing wheels or nembers of thetotalizer; this latter movement being accomplished by the advancingmovement of the typewriter carriage. There is also shown and describedmechanism for imparting a variable operating motion to the actuatinmechanism. This invention is in the nature of an improvement upon thedevices disclosed in said application No. 547,300, which applicationembodies a dis claimer in favor of my other co-pending applications No.236,498, filed December 12, 1904; No. 302,845, filed February 26, 1906;and No. 504,595, filed June 26, 1909. Likewise the claims herein arealso limited to devices. not disclosed either in 547,300 or in any ofsaid other applications.

In the present application there is also provided similar mechanisms,but it is one of the objects of the present invention to provideimproved means for returning the typewriter carriage to its initial orstarting position from any point of its advancement, and improved meansfor preventing the accidental or mischievous operation of the advancingmechanism for the typewriter carriage simultaneously with the operationof the returning mechanism for the carriage to prevent locking of theparts and the con sequent damage resulting therefrom. A further objectof the present invention is to provide improved means for returning thetypewriter carriage to any predetermined point intermediate the point towhich it has been advanced and the initial or start ing position at thewill of the operator, so that the typewriter carriage will be properlyand quickly positioned for tabulating the amounts on the paper.

rknother object is to provide improved means whereby the mechanism whichis adapted to impart a variable operating movement to the register ortotalizer actuating mechanism may be employed for the purpose ofreturning the typewriter carriage to a predetermined point.

In the said prior application there is also shown and described meanswhereby the calculating attachment may be readily attached to the keysof the typewriter whereby the manipulation of the keys of the attachmentwill not only actuate the registering mechanism to register or indicateresults thereon, but will also actuate the numeral keys of thetypewriter to print the results, while at the same time the typewriternumeral keys may be operated independently with respect to thecalculating mechanism and without actuating the latter. Y

Another object of the present invention is to provide improved meanswhereby tne actuation of the typewriter keys will be prevented, and themechanism for shifting the register-actuating means into operativeposition with respect to the register will also be rendered inactive toprevent the operation of the register or totalizer, during the returnmovement of the carriage by the mechanism which imparts the variableoperating motion to the totalizer or register actuating means.

further object is to provide an improved machine of this character whichwill be simple and durable in construction and effective and efficientin operation.

To the attainment of these ends and the accomplishment of other new anduseful objects, as will appear, the invention consists in the featuresof novelty hereinafter more fully described and claimed and shown in theaccompanying drawings illustrating an embodiment of the invention, andin which- Figure 1 is a detail top plan view of a portion of a machineof this character conof Fig. 1.

structed in accordance with the principles of this invention.

Fig. 2 is a detail sectional view on line 2-2 of Fig. 1.

Fig. 3 is an enlarged detail plan view of a portion of the mechanismshown in Fig.1 with parts removed and as taken on line 3-3 of Fig. 2.

Fig. 4 is a detail sectional view on line 44 of Fig. 1, looking in thedirection of the arrows.

Fig. 5 is a sectional view on line 5-5 of Fig. 1.

Fig. 6 is a detail sectional view on line shown in Fig. 11.

Fig. 13 is a sectional view on line 1313 Fig. 14 taken on line 14-14 ofFig. 1. Fig. 15 is a vertical section.

Referring more particularly to the drawings and in the presentexemplification of the invention, the numeral 20 designates generallythe totalizers or registers which are mounted upon a suitable support21, which in turn is mounted upon a base 22. Each of the number bearingmembers of the t0- talizersis provided with a gear 23 by means of whichmotion is imparted to the number bearing members. A carriage 24 (seeFig.

4) is mounted upon the base 22 so as to be reciprocate-d transverselythereof, and traveling actuating mechanisms, including operating gears25, are provided for imparting motion to the gears 23. These gears 25are mounted upon a shaft 26 for rotation therewith and for adjustmentlongitudinally with respect thereto and the shaft is in turn journaledin suitable supports 27 arranged at each side of the machine and thesesupports are in turn pivotally mounted on a shaft 28 which is connectedwith the'shaft '26 by meansof gears 29 on theends of the shaft 28 whichmesh with gears 30 on the ends of the shaft 26. Motion is imparted tothe shaft 28 by means of a gear 31 which in turn meshes with anelongated toothed drum 32 so that the actuating mechanisms, as well asthe supports 27 maybe reciprocated longitudinally with the carriage 24and at the same time'the gear 31 will be is an irregular sectional Viewmaintained in mesh with the drum 32 during the reciprocating movement(see Figs. 3 and 4). The supports 27 are connected by means of aconnecting bar or rod 33 and locking members 34 are provided for lockingthe number bearing members or wheels of the totalizers or registersagainst overthrow. The supports 27 and the connecting bar Or rod 33 areadapted to be rocked about the shaft 28 to move the actuating gears 25into or out of position to mesh with the gears 23 of the registers bymeans of a'bar or rod 35 which latter passes through the aperturedextremities 36 of pivotally supported members 37, which latter areconnected to the locking members 34 (see Figs. 3 and 4) and the rod ormember 35' is connected to a rock shaft 38 by means of arms 39" and theshaft 38 is mounted in suitable supports 40 on the base 22, so that whenthe shaft 38 is rocked 'in its bearings in a manner to be hereinafterset forth, the actuating gears 25 will be adjusted toward and away fromthe gears 23 and transversely with respect to the axis of the gears 25.The rod or bar 35 passing loosely through the apertured extremities 36of the members 37 will permit the carriage 24 and the actuating gears 25to be adjusted to change the denominational position of the gears 25with respect to the number bearing members of the register.

The gears 25 are normally held in aninactive position with respect tothe gears 23 and in order to render any one or more of the totalizers 20active, it is necessary to shift the gears 25 laterally so that theywill move longitudinally on the sl1aft'26. In order to accomplish this,selector mechanisms are provided and each comprises a collar 39 (seeFigs. 2 and 3) which collars are mounted loosely on the shaft 28 and areprovided with spaced circumferential ribs 40. These collars are providedwith spaced uprights 41 having yoked or bifurcated extremities 42 whichreceive the shaft 26 and these uprights are arranged one on each side ofthe gears 25 so that when the collar'39z is shifted the uprights willcorrespondingly shift the gear 25 on the shaft 26. Keys 41 are alsoprovided which are mounted loosely on the support 42 and have a slidingconnection with a stem 43 (see Fig. 2) which passes loosely through asleeve or collar 44 rotatably mounted in a support 45. The

lower extremity 46 of the stem 43'has a bearing'in the carriage 24 andan elastic mem- 'ber 47 tends normally to return the key 41 and tohold'a pin 48 in a slot 49 in the sleeve '44 to look a gee-r50 againstoperation under the tension of an elastic member 51. The

sleeve 44 is arranged in an, upright position i and the gear 50 thereonmeshes'with the ribs 40 on the collar 39. The elastic member 51 tendsnormally to shift the sleeve or collar 39 on the shaft 28 to move thegear 251011- gitudinally of the shaft 26 and position the gear so thatit will mesh with one of the gears 23 of the totalizer when the gear 25is moved toward the totalizer. One of these selector mechanisms isprovided for each of the totalizers and although one only has beenspecifically described, the same description will apply to each. Whenone of the keys 41 is depressed to render the respective gear active,the first operation will be to depress the stem 43 against the tensionof the elastic member 47 and this will move the pin 48 out of the notch49 of the sleeve 44. hen thus released, the elastic member 51 willrotate the sleeve 44 and the gear to shift the sleeve 39 and move thegear 25 into operating position.

The selector mechanisms thus described may be reset to an inactivecondition by -means of a suitable key or bar 52 (shown more clearly inFigs. 1 and 2) and this bar or key 52 extends substantially the lengthof the totalizers 20 and is connected to stems 53 similar to the stems43. The stems 53 are each connected to a rock shaft 54 mounted insuitable bearings. These shafts are provided with arms 55 connected bymeans of a bar or rod 56 and the bar extends transversely of the sleeves44 and has loose connections with projections 57 on each of the gears 50so that when the stems 53 are depressed the shafts 54 will be rocked andthe bar or rod 56 will be shifted so as to move the sleeves 44 abouttheir pivots and against the tension of the elastic members 51 toposition the slot 49 in the sleeves so that the pins 48 on the depressedstems 43 will be moved by the elastic member 47 into the slot 49.

A motor 58 (see Figs. 1 and 5) is provided for imparting motion to thegears 25 and this motor in the present exemplificationofthe invention isshown as a spring motor which is provided with a gear 59 on itsperiphery and this gear 59 meshes with a gear 60 on a shaft 61, which isjournaled in suitable supports 62. This shaft 61 is adapted to impart avariable degree of rotation to a shaft 63. which latter is arrangedadjacent the shaft 61 and preferably in advance thereof. Secured to theshaft 63 and for rotation therewithis a series of gears 64 and selectormechanisms may be provided for controlling the degree of rotation of theshaft 63.

Any number of these selector mechanisms may be provided but in thepresent exenr plilication ofthe invention nine are employed, one foreach of the nine numeral l-tevs 65 of the typewriter corresponding invalues from 1 to 9. The construction and operation of each of theseselector mechanisms are the same and therefore the specific descriptionof one will apply equally as well to them all. They each comprise asleeve 66, which is mounted upon the shaft 61 for rotation therewith andfor sliding adjustment longitudinally on the shaft (see Figs. 2 and 7)and the sleeve is provided with peripheral spaced ribs 67. A onetoothedgear 68 is secured to the sleeve 66 and a mutilated gear 69 is alsosecured tothe sleeve. The mutilated gears 69 are provided with adifferent number of teeth, that is to say, each of the mutilated gearsis provided with a number of teeth corresponding to the number of thenumeral key 65 of the typewriter, to which it is connected, as will beunderstood. An upright sleeve 70 is rotatably mounted in a suitablesupport 71 and is provided with a gear portion 72 (see also Fig. whichmeshes with the ribs 67 on the sleeve 66. An elastic member 73 isconnected to an extension 74 on the sleeve by one extremity and isanchored as at 75 to a fixed support. The tendency of this elasticmember 73 is to normally rotate the sleeve 70 and the gear 72 so as tomove the sleeve 66 on the shaft 61 to bring the corresponding gear 69into a position to mesh with the gear 64.

The sleeve is adjusted on the shaft 61 to move the gear 69 out ofactuating position with respect to the gear 64 by means of an arm 76which is connected to a rock shaft 77 and this arm engages a projection78 on the sleeve 70 to rotate the sleeve and the gear 72 in the oppositedirection against the tension of the elastic member 73 when the shaft 77is rocked in one direction. The gear 69 is locked in its non-meshing orinactive position by means of a stem '79 which is provided with a pin 80normally seated in a slot 81 in the sleeve 70 and adapted to be movedout of the slot when the stem is raised. Actuating or numeral keys 82are arovided for shifting the stems 79 and these keys are connected to alever or arm 83 which is pivotally supported intermediate its ends as at84 and one extremity is pivotally connected as at 85 to the stem of thekey 82. The stem '79 is pivotally connected as at 86 to the other end ofthe arm at a point remote from the extremity of the arm. An elasticmember 87 is provided which tends normally to restore the key and tomove the stem 79 in a direction to cause the pin 80 to enter the slot 81in the sleeve 70.

It will thus be seen that when any one of the gears 69 is shifted by theoperation of the corresponding key the shaft 6 will. be rotated a numberof steps of rotation corresponding to the number represented by the key82. which is depressed. The motor 58 is adapted to be inermittentlyreleased by escapement mechanism substantially like that disclosed in mapplication above referred to. A link is connected at one extremity tothe escapement to rock it about its pivot 92 and by its other extremityto a dog 94, which is secured intermediate its ends to a rock shaft 95.

one for each of the arms or levers 83, and the free extremitles of thesedogs or fingers project into the path of movement of a projection 97 onthe extremity of the arms or levers 83 adjacent the point of pivotalconnection 86 of the stem 79 with the arm 83. One of these dogsor-fingers is provided for each of the arms or levers so that when thelatter is rockedby means of the key 82 to shift the stem 79 to releasethe mutilated gear 69 and thereby permit the latter to be adjusted intooperating position with respect .to the gear 6 1, the shaft 95 will alsobe rocked, the parts being so timed that the gear 69 will assume anoperating posltion before the shaft 95 is rocked. As the shaft 95isrocked, the escapement arms 87, 88,

will be rocked about their point of pivotal support to release the motor58 and when thus released the motor will make one step of rotation. Theconnection between the motor and the shaft 61 is so proportioned that oneach step of rotation of the motor, the shaft 61 will make one completerotation and at the completion of this movement, the shaft 7 7 will berocked to release the gear 69 which has previously been rendered activeand permit the latter to be shifted to its inactive position on theshaft 61.

The escapement mechanism is returned to normal position under control ofthe shaft 61 acting'through the medium of the cams 105, said cams actingin precisely the same manner and through connections s1m 1lar to thoseset forth in detail in my 'applicatlon Serial No, 517,300, abovereferred to, sald operation being as follows:

The shaft 61 is driven through a complete revolution on each step ofmovement of the motor. This motor is connected by means of the gear 59,Figs. 1 and 5, to pinion on the shaft 61. The ratio between the gearthis instance five pins (only four of which are shown in Fig. 6, becauseof the presence of the arm 127 in said figure); In 'orderto permit thegear 59 to rotate, the arm 88,

which normally engages a pin 91 is moved out of position by one of thenumeral keys 123, Fig. 6, to allow the pin to escape.

In order to limit the movement of the gear 59,a-fter 1t 1s moved a811111016111; amount,

to rotate the shaft 61 a full revolution, the arm 88 is moved into thepath of the next approaching pin. This is accomplished by the arm 88,which is rigidly mounted on the shaft 77, which shaft 77 is rocked bythe cams 105. Connected to the arm 88 is a link 88, which, by apin-and-slot connection with the arm 87, moves said arm 87, and, onaccount of the rigid connection of this arm 87 with the arm 88, the arm88 is also moved to a position in front of the advancing pin 91; thetiming of the parts being such that the arm 88 is moved in timetoposition the arm 88 in front of said advancing pin 91, to stop themotor at the end of one step of movement of the gear 59. This action isrepeated on the depression of each key, the gear 59 making one fifth ofthe rotation each time a key is depressed. In this connection, it willbe noted that the arm 106,

shaft 77, arm 88 and link 88 constitute, in

effect, part of the escapement mechanism, in so far as their manner offunctioning is concerned.

During the rotation of the'shaft 61, the actuating gears% are movedtoward the registers or totalizers so that the gear 25 ,101 looselymounted on the shaft 77 and these arms are connected indirectly by meansof links 102 to arms 103 which latter are secured to the shaft 38 sothat when the shaft 61 is rotated the cams 100 will engage the arms 101and rock the latter about the shaft 77 which will in turn rock the shaft38 in one direction through the medium of the links 102 and arms 103.Elastic members 104: are provided which tend to return the arms 101 and103 when the low portion of the cams 10.0 is presented to the arms 101and these elastic members also tend to move the gears 25 laterally awayfrom the gears 23. Cams or projections 105 are also secured to the shaft61 and are adapted to engage arms 106 which latter are secured to theshaft 77 (see Figs. 5 and 7) and are for the purpose of rocking theshaft 77 to cause the arms 7 6 secured thereon to engage the projections78 on the sleeves to rotate the latter against the tension of theelastic member 73 so as to position the slot'81 in the sleeve to receivethepin or projection 80 on the stem 79. i

In 'order to lock the remaining keys 82 against actuation when one'ofthe said keys has been actuated, a locking plate or memher 107 isprovided and is supported by the arms 101 loosely mounted on -shaft 77.WV hen shaft 61 is rotated, cams 100 thereon will engage and rock arms101 and thus bring locking plate 107 into play (see Figs. 1, 2, 5 and7). This locking plate is provided with recesses adapted to standastride of the stems 79 and a pin 108 similar to the pin 80 is providedon each of the stems and spaced from the pin 80 so that the plate willpass therebetween, as shown in Fig. 2, to lock the keys againstactuation.

The key action of the typewriter is shown to be of the regular Underwoodtype and consists of the keys '65 which actuate through their leversbell cranks 200, so that the latter will swing type bars 201 upwardlyand rearwardly against the front side of aplaten 202 on the carriage109. The carriage is given a step-by-step letter feeding movement at theactuation of each of the keys 65, by having a heel 203 on each of thetype-bars 201 come in engagement with the universal shift frame 20%,which carries a pair of pa-wls 205 engaging and controlling the movementof an escapement wheel 206. Secured to move with the escapement wheel206, there is provided a pinion 207 which meshes with a rack 208 carriedby the carriage 109. The pawl 205, which is normally in engagement withthe escapement wheel 206, has a broken joint, so that while it holds theescapement wheel from moving when the carriage 109 tends to run forwardunder the tension of a spring barrel 209, it will permit a returnmovement of the carriage, and thus a backward rota-- tion of theescapement wheel 206 when the carriage is driven by the pinion 111 whichengages the rack 112.

hen any one of the keys 82 has been actuated the stem 79 will be shiftedso as to move the pin or projection 108 to a position above the plate107 so that when the latter is actuated it will pass below the pin 108and lock this key in an actuated position while at the same time theremaining keys will be locked against actuation by the plate 107 passingabove the pins 108 on the stems corresponding thereto.

The carriage 24 and the supported mechanism including the travelingactuating gears 25 is adapted to be advanced by means of the typewritercarriage 109 through the medium of a shaft 110 which is provided with agear 111 (see particularly Figs. 1 and 14c) meshing with a rack 112 onthe typeivriter carriage. A gear 113 is also connected with the shaft110 and this gear meshes with a segment 11 1 onan arm or lever 115 whichlatter is pivoted intermediate its ends at 116. The forward end of thearm or lever 115 is provided with a rack 117, which latter meshes with arack 118 secured to and supported by the carriage 24, so that it will beapparent that as the typewriter carriage advances motion will beimparted to the shaft 110 to rotate the latter and this in turn willmove the arm or lever 115 about its pivot 116 through the medium of thegear and rack 113, 114:, and will ad vance the carriage 2 1 through themedium of the intermeshing gears or racks 117, 118.

As the selector mechanisms which include the gears 69 are renderedactive by the keys 32 in the manner already set forth, the correspondingkeys 65 of the typewriter will be actuated by means of the one-toothedgear 68, the tooth of which latter is adapted to engage the extremity119 of an arm or lever 120 which is pivotally supported intermediate itsends as at 121 so that the extremity 119 will project into the path ofmovement of the tooth on the gear 68. The other extremity of this arm orlever is connected by means of a connection 122 to the respective keys65 so as to operate the latter against the tension of springs 185.

After the carriage 109 of the typewriter has been advanced, it may bereturned from any position to which it has been advanced to its originalor starting position by means of a key 123, (see Figs. 1 and 6) whichkey operates an arm or lever 121 pivotally supported intermediate itsends as at 125, and one extremity of this arm or lever is provided witha projection 126, into the path of movement of which the dog 94:projects so that when the key is depressed, the escapement arms 87, 88,will be rocked in a manner similar to that already described to releasethe motor 58.

As the typewriter carriage 109 is advanced in the ordinary and usualmanner by the operation of the keys 65, this advancing movement will becommunicated to an arm or lever 127 (see particularly Figs. 1, 6 and14:) and which lever is pivotally supported intermediate its ends as 128to a suitable support 129 on the base 22. One extremity of this arm orlever is provided with a toothed segment 130 which meshes with a gear131 and to which gear is secured a gear 132. This latter gear 132 mesheswith a gear 133 on the shaft 131; and this shaft 131 receives its motionthrough the medium of intermcshing gears 135, 136, the gear 136 beingsecured to an upright shaft 137. The shaft 137 receives its motion fromthe gear 111. which meshes with a gear 138 on the shaft 137. The otherend 139 of the arm or lever 127 is adapted to be moved toward a cam 1410which is loosely mounted on the shaft 61. This cam 110 is secured to adisk 111 which is also loosely mounted on the shaft 61 and clutchmechanism is provided for locking the cam 140 for rotation with theshaft 61. Any suitable clutch mechanism may be provided but themechanism shown comprises a star or toothed gear 142, which is securedto the shaft 61 for rotation therewith. A dog 1 13 is pivotallysupported by the disk 141 and an elastic member 144 is provided whichtends normally to throw the dog 143 into engagement with the star ortoothed wheel 142. This clutch mechanism is adapted to be actuated bythe operation of the key 123 when the latter is depressed to rock theescapement arms 87, 88. In order to accomplish this result there isProvided a second dog 145 which is pivoted to a fixed sup port 146 andone extremity is adapted to engage a shoulder 147 on the dog 143 to movethe latter out of engagement with the star or toothed wheel 142 andagainst t is tension of the elastic member 144. The other end of the dog145 is connected by means of a link 148 to the arm or lever 124. Thus itwill be seen that when the key 123 ishdepressed to move the dog 145 fromthe position shown in Fig; 6 and out of engagement with the dog 143, thelatter will be released and the elastic member will move it intoengagement with the star or toothed wheel 142 to lockthe disk 141 andcam 140 for rotation with the shaft 61. The extremity 139 of the arm orlever 127 willbe moved toward the cam 140 a distance corresponding tothe extent of the advancing movement of the carriage 109 of thetypewriter so that when the key123 is depressed and the cam 140 rotatedwith the shaft 61, the cam will engage the extremity 139 of the arm orlever 127, thereby raising or moving the end 130 in the oppositedirection which will reverse the direction of rotation of theshaft 137to move the carriage 109 back to the initial or starting position.

When the key 123 is released the dog 143 will be automatically shiftedby the dog 145 to release the clutch mechanism.

All of the above described parts, however, with the exception of themechanism for returning the typewriter carriage to its initial orstarting position, forms no part of the present invention but forms theSllbjGC't-dnittter of the above referred to application.

It is the intention of the present application to provide means wherebythe typewriter carriage may be returned to its initial or startingpositions from any point of its advancement and also to provide meanswhereby the typewriter carriage may be returned to any point between thepoint to which it has been advanced and its initial or starting positionso as to tabulate the amounts, at the will of the operator, and also toutilize the selector mechanisms which impart a variable movement to theshaft 63, for thus returning the typewriter carriage to the intermediatepositions. In order to acco1nplish this and also to prevent theoperation of the typewriter keys 65 during this return movement of thetypewriter carriage, mech anism must be provided for shifting the armsor levers 120 so that the extremities 119 thereof will be moved out ofthe path of movement ofthe tooth on'the one-toothed gears 68; As hasalready been explained,

the movement of the traveling actuating mechanism ofthe totalizers orregisters in order to change their denominational relation to thenumberbearing members of the totalizers, is controlled by theadvancement of the typewriter carriage. This advancehas secured thereon,so as to rotate there with, a pair of spring-pressedpawls 150, whichengage a two-toothed ratchet 151v secured to the gear 113. Once in everyhalfa revolution corresponding to ten letter-feeding movements of thetypewriter carriage, the pawls 150 come into engagement with stationarytrippers 151 which disengage the pawls from the ratchet'151, permittingthe spring 149 to return the lever 115 while the gear 113 rotatesfreely. The traveling actuating gears 25 are mounted upon a support orframe so that they will be moved toward and away from the gears 23 ofthe totalizers or registers 20, in a direction transverse to the axis ofrotation of the gears 25, by the operation of the shaft 61, which latteris rotated by the motor 58. The shaft 61 re tates the cam .100, rockingthe arm 101 which indirectly moves the link 102 to rock the shaft 38,which swings the arms 39 forward, thereby rocking the frame, whichcarries the gears 25, about the shaft 28 as a pivot. It is thereforedesirable, when tabulating by the backward movement of the typewritercarriage 109, to render this shifting mechanism of the travelingactuating gears inactive so that they will not'be moved toward and awayfrom the totalizer. As the gears 25 and the drum 32 are rotated from theshaft 63, which is driven by the motor and either the gears152, 153, 154or the gears 155, 156, according to the direction of rotation desired ofthe number bearing members or wheels of the totalizers or registersfor'the purpose of registering debits or credits, these gears 25 will berotated during the return movement of the carriage 109, and thelocking'or carrying members 34 of the totalizers would be actuated sothat they would not assume proper positions to correctly ac tuate thenumber bearing members of the registers. In order to'obviate this,mechanism is provided for rendering the drum 32 in active during thereturn movement of the typewriter carriage.

I The mechanisms for accomplishing these results will now be described.

The gear 152 (see particularly Figs. 1, and 16' to 13 inclusive) ismounted loosely upon the shaft 63- as well as the gear 155 to which thegear is connected. A gear 157 is also loosely mounted on the shaft 63and spaced from the gear 152. The adjacent faces of the gears 152, 157,are provided with a plurality of apertures 158, and a clutch member orcollar 159 is mounted upon the shaft 63 between the gears 152, 157. Thisclutch member or collar is splined to the shaft 63 for rotationtherewith and is adapted to be shifted on the shaft longitudinallythereof and toward and away from ea eh of the gears 152, 157. Projectinglaterally from each face of the clutch member 159 are spaced pins orprojections 160 which are adapted to enter the apertures 158 in therespective gears 152. 157. These gears are spaced from each other asu-tlicient distance to permit the clutch member 159 to be shiftedtosuch a position that when the pins or projections 166 on one face enterthe apertures 158 on the respective" gears 152, 157, the pins orprojections 166 on the opposite face wi l be disconnected from: therespective gears or moved out of the recesses therein, so that when oneof the gears is locked forrotation with the shaft 63. the other free torotate thereon. The clutch member 159 is adapted to be shifted by meansof a key 165 through the intermediary of a bell crank lever 161, onearm: of which is formed into a yoke having projections adapted to entera circumferential groove or slot in the periphery of the clutch memberin the ordinary and well known manner. The other arm of the bell cranklever is connected by means of a. pinand slot connection 162. 163, withthe stem 16& of the key 165 and the slot 16-3 is preferably so arrangedthat when the key 165 is depressed the bell crank lever 161 will movethe clutch member 159 to lock the gear 157 to the shaft 63. An elasticmember 166, suchas a coil spring or the like, is provided, one end ofwhich is connected to the yoke arm of the bell crank lever and the otherend is anchored to a suitable fixed support and tends normally to shiftthe hell crank lever 161 to move the clutch member 159 to lock the gear152 to the shaft 63. Thus it will be seen that when the key 165 isdepressed, the gear 157 will be locked to the shaft 63 so that themotion of the shaft will .be communicated to the typewriter carriagewriter carriage.

lVhile it is desirable to have the typewriter carriage control theadvancing stepby-step movement of the computing or totalizer carriage,it is not desirable to have the return movement of the typewritercarriage act on the computing or totalizer carriage advancing means,whether the carriage is returned a predetermined amount or anindeterminate amount. There is therefore provided a loose connectionbetween the shaft 110 and the typewriter carriage 109. For this purpose,as best shown in Figs. 9 and 14,- the pinion 111 which meshes with therack 112 on the typewriter carriage 109 is loosely mounted on the shaft116 and connected thereto by a one-way pawl and ratchet connection,including the pawl 171 and the .ratchet wheel 172, the former of whichis secured to the shaft 116 and the latter of which is secured to thepinion 111. This, then. enables the shaft 137 through the gear 136 andthe pinion 111, toreturn the typewriter carriage 169 without driving theshaft 116 and the connected mechanism.

the clutch member 159 is shifted to lock the gear 157 to the shaft thekey 165 is employed for shifting the arms or levers 126 into an inactiveposition so that the extremities 119 thereof will be moved out of thepath of movement of the tooth of the one-toothed gear 68. This may beaccmnplishcd in the following manner: The stem 161- (see Fig. 13) of thekey 165 is of some length and is provided with rack teeth 173 which meshwith a toothed cylinder or barrel 17-1: rotatably mounted in suitablesupports 175 and arranged at right angles to the stem 16 1.

Secured to and for rotation with the cylinder or barrel 17 1 is a gear176 which meshes with the gear 177 on a shaft 178 (see particularlyFigs. 1, 2, 3 and 13). This shaft 178 is journalec ii and the supportand is provided with a crank arm 186. Loosely mounted upon a suitablesupport, preferably the shaft 121, are arms 182 which are connected by across bar or rod 183. This bar or rod is arranged above and projectsacross the arms 120 forward of the pivot thereof and the arm 182 isconnected to one of the arms 186 by means of a link or connection 161:so that when the key 165 is depressed, the cylinder or barrel 174 willbe rotated and this rotary motion will be imparted to the shaft 178 tomore the arm 186 thereon downwardly. This movement of the arm 1.86 willdraw the bar or rod 183 into engagement with the extremities of the arms126 to depress the latter to more them out of the path of movement ofthe tooth of the one-toothed gears 68. These parts will be held in thisposition as long as the key 165 is held depressed, but when the key isreleased, the elastic member 166 will return the key and at the i asuitable bearing 179 same time will shift the clutch member 159 tounlock the gear 157 and lock the gear 152 and the return movement of thekey will also raise the arm 180 to elevate the bar or rod 183 to permitthe extremities 119 of the arms 7 mediary of the link 102 and the arm103. a

This connection is indirect and interruptable, as will now be explained.The link 102 which is connected to the arm 103 (see par ticularly Figs.5 and 7) is connected to an arm 186 which is loosely mounted upon theshaft 77 adjacentand independent of the :arm 101. This arm 186 isprovided wlth' a clutch face 187 and the arm 101 is provided with aclutch face 188 spaced from and opposed to the clutch face 187 on thearm 186. A clutch member 189 is arranged between the clutch faces 187,188, and is adapted to be shifted with respect thereto. This clutchmember is provided with faces which cooperate with the clutch faces 187,188, and is adapted to be so shifted that when in the position shown inFig. 7 the arm 186 will be locked to the arm 101 so that by theoscillation of the latter, the arm 186 will be' rocked to rock the shaft38 to move the actuating gears 25 toward the gears 23 of the totalizersor registers. The arm 186 may be moved in the opposite direction in anysuitable manner, such as by means of an elastic member or spr ng 190whlch 1s connected to the arm and to a suitable fixed support. Theclutch member 189 is adapted to be shifted so that the arm 186 will bedis connected from the arm 101 so that the oscillation of the latterwill not affect the arm 186, and as the latter will not be shifted bythe actuation of the arm 101 it will be apparentthat the shaft 38 willremain idle and T therefore the gears 25 will not be shifted toward oraway from the totalizersa The shifting of this'clutch member 189, asabove stated, is accomplished by the actuation of the'key 165 throughthe medium of a bar or rod 191, one end of which is connected to asuitable yoke 192 (see Fig. 7) having connection with the clutch member189 in the ordinary and well known manner. This'bar or rod 191 isarranged at right angles to the stem 16 1 of the key 165 (see Figs. 4and 13) and also to the cylinder orbarrel 174 and moves in suitableguides or bearings such as the support 62' and a bearing 193.

member 189 will be correspondingly shifted 1 in the direction accordingto the: direction of rotation of the barrel or cylinder; When the key165 is released and is returned to its normal position by the elasticmember 166 in the manner already set forth, it will be apparent that thebarrel or cylinder 175 will be rotated in the opposite direction andthis 7 rotation of the barrel or cylinder will shift the bar or rod 191and theclutch member 189 in the opposite direction so as tov lock thearm 186 for operation by the arm 101.

Should it so happen that one of the keys 82 is accidentally depressed ormischievously actuated at the same time that it is desired to return thetypewriter carriage to its initial or starting position by the actuationof the key 123, it will be apparent that the key of the typewriter,corresponding to the key 82 which has been accidentally actuated, wouldbe operated and this would tend to cause the typewriter carriage toadvance,

while'the actuation of the key 123'would therefore to obviate thisdifliculty and to prevent the locking of the parts, mechanism isprovided wherebythe actuation of the key 123 will actuate the bar or rod183 to depress or move the extremities 119 of the arms or levers 120 outof the paths of movement of the teeth of the one-toothed gears 68 andthereby render the advancing mechanism of the typewriter carriageinactive, even though both of said keys are simultaneously actuated.Suitable mechanisms for accomplishing this result will now be described,reference being had particularly to Figs. 3, 6 and 7. Secured to theshaft 178 is an arm 195, connected to which, by one extremity, is a link196. The other extremity of the link is provided with a slot 197 andthis extremity of the link is connected ,to an extension 198 on the armor lever 124 by means of a pin or projection 199 which extends into theslot to form aloose connection. When the key 123 is de pressed, the pin199 will engage the end of the slot 197 in the link 196 to rock theshaft 178 in a direction to lower the bar or rod 183 into engagementwith the extremities 119 of the arms or levers 120 to depress the latterand hold'them depressed until the key 123 is released.

shaft 17 8 is thus rocked the link Will be moved and the key 123willremain stationmy and will I be prevented from bobbing up and down.The pin andslot connection 162, 163, on the stem t164-of:the key 165 isalso provided so asto permit-the keyto move without effecting theactuation of the parts when the shaft 178 is rocked by, the operation ofthe arms or levers .120 through the medium of the one-toothed gears 68.These pin-and-slot connections .162, 168 and 197, 199 also-preventthesoperationof one ofthe keys 128,165 and the associatedmechanism fromthe other.

From the-above description it isthought that-the operation will :befully understood butbrieflystated i't'is as follows; After the desiredkey of the series etl which renders a predetermined one ,or-moreofthe-.- totalizers active, has been actuated, the key of the series-82;is then operated. This willrender the corresponding-mutilated gear69.0perative and at the same time the motor 58 will be released and willstart tooperate. The operation of this motor-will drive the shaft 61andthe cams 100thereon will'rock the arms 101 to rock theshaft 38 andmovethe gears '25 intoposition totmesh with the respectivegears 23of thetotalizers or registers. A variable motion will be imparted to'the shaft63-1according to the key .ofthe series .82 actuated, .and also accordingto the number of teeth-on .the operatinggear 69. This will actuatetheiregister and the key of the series 65 which corresponds to thekeyofthe series 82 which has been actuated. This operation will berepeated until theaamounts havebeen registered and recorded. Thetypewriter carriage .109 is advanced intermittently by the operation ofthe keys65 in the ordinary and well known vmanner. During :the advancingmovement of the carriage .109the traveling actuating gears 25 arecorrespondingly shifted longitudinall with respect to the totalizers20during the firstnine steps of movement of the carriage. During. thetenth step ofmovementof the carriage forwardly, the traveling actuatingI gears willbe returned to their normal or. initial starting position.During the.advancing movement of the carriage 109, the shaft .134: willbe. rotated, and this will in turn rotate the gears 132,131, .to movethe arm 127 about its pivot so that thefree extremity thereof will bemoved toward the cam 1 10. lVhenit is desired toreturn the typewritercarriage'to its. original or starting nosition from any point to whichit has been advanced, the key 123 is actuated and this key will lock thecam 140 forrotation with the shaft 61, at the same time the escapementarms 87, 88, .will be-rocked to release the motor 58 to permit it tomake one step of rotation. lVith. the. parts. in. this position, therotation of the shaft 61 will rotate the cam 140, which latterwillengage the extremity of the arm 127 tomovc it in the oppositedirection, whichmovement will impart a reverse rotary movementtotheshaft 1341 and the typewriter carriage will be thus returned. Whenthe-key'123 is actuated,.the bar or member 188will be depressed to movethe extremities 119 ofthe arms or levers 120 outpfthe path ofmovement ofthe teeth of the one-toothed gear 68 to prevent the actuation ofthe-keys 65 of the typewriter proper in the event-one of the keys of theseries 82 has been accidentally actuated. lVhen it is desired toreturnthe typewriter carriage 109-to a predetermined pointintermediatethe initial or starting point and the point to whichit has been advancedby the employment of the selector mechanisms and which mechanisms imparta variable motion to-theshaft 63, the key l65iisj actuatedto u-nlock:thegear .152-from the shaft 63 and'to lock the gear 157 to the shaft 63,thereby rendering-the drum or cylinder 32 inactive. At the same time-thebar or rod 183 will be depressed to move the extremities 119 of the,arms;120 out. of.the paths of 'movementof the one-toothed .qears 68 andthezactuation of thiskey 165 will. also disconnect the arm 186,-fr0m thearm 101 byshiftingthe clutch member 189 so that the actuating gears willnot be imoved toward. the totalizers, or registers :20. .lVith the partsthus adjusted, the key of the series 82, corresponding to the numberofspaces it is desired to returnthe carriage 109, is actuated.The:actuation of thiskey will render. the corresponding mutilated gearv69 operativeand; at the same timethe shaft 95 will be rocked by means.of the. engagement of thepin .or projection 97 on the arm or lever 83with the dog 96. The rocking of this shaft 95 will shift-theescapementarms 87, 88, to release: the motor 58, thereby permitting thelatter to move one step of rota tion. This rotary motion of the motorwill be imparted to the shaft 63 through the medium of thegear 6 Lwhichunesheswith the mutilated gear 69 that has been locked toithe shaft61. ,During this operation the key 165 mustbe held depressed and whenthus held, the variable motion of the shaft 63 will be. imparted to theshaft 134 through themedium of the gears 157, 167, shaft 168 and gears169, 170, to rotate the shaft 134 in a direction to return the carriage109 a number of steps equal to the number of steps of rotation impartedto the shaft 68. After the typewriter carriage has been thus returned,the cam-tooth 105 (see Fig. 5) on the shaft 61 will rock the arm 106secured to the shaft 77 so as to swing the arm '76 (see 'Fig. 2),secured on the shaft 77,into engagement withthe pin 78, whereby the gear69 will bereleased from the shaft 61 and thekey 82returned to itsnormal-position. WVhenthe key 165 is released, the gear 157 will beunlocked from the shaft 68 and the gear 152 will be locked thereto sothat the motion of the shaft 63 will be imparted to the drum or cylinder32 when the shaft is rotated with the parts in this position. Theconnection between the arms 101 and 186 will be'restablished so that theactuating gears may be moved to mesh with the gears 23 of the totalizersor registers and the bar orrod 183 will be elevated so as to permitthe'extremities 119 of the arms or levers 120 to move to such positionsthat any one of them may be actuated to operate the corresponding keys65 of the typewriter whenone'of'the'mutilated gears 69 is renderedactive by the operation of therespective keys 82.

In order that the invention might be fully understood, the details ofthe foregoing embodiment thereofhave been thus specifically described,but what is claimed as new is 1. In a calculating machine, calculatingmechanism including actuating mechanism,

means connecting the actuating mechanism with a key controlledescapement carriage for advancement thereby, selector mechanisms forcontrolling the operationiof the said actuating mechanism and also theactuation of the keys, and" means also controlled byt said selectormechanisms forreturning the carriage to a predetermined point from 7 anypoint of its advancement.

'2. Ina calculating machine, calculating mechanism including actuating.mechanism, means connecting the actuating mechanism with a'keycontrolled escapement carriage for advancement thereby, selector mechanisms for controlling the operation of the said actuating mechanism andalso the actuation of the keys, means also controlled by said selectormechanisms for returning the carriage to a predetermined point from anypoint of its advancement, and means for ren dering the key. actuatingmechanism inactive during such return of the carriage.

3. In a calculating machine, calculating mechanism including actuatingmechanism, a key controlled escap ement carriage, selector mechanismsvtor controlling the operation of said actuating mechanism, operatingconnections between the said selector mechanisms and the respectivekeys, means operatively connected with the said selector mechanisms forreturning the carriage thereby, andmeans for rendering the saidactuating mechanism inactive during such return of the carriage.

4. In a calculating machine, calculating mechanism including actuatingmechanism, a key'controlled escapement carriage, selector mechanisms forco'ntrollingthe operation of said actuating mechanism, operatingconnections between the said selector mechanisins "and the respectivekeys, means oper atively connected with the said selector anism'inactive during the return 01": the

carriage, means for also rendering the said actuating mechanism inactive5 during such movement of'the carriage, and means common to both ofthelast said means for controlling the same. a

6. In a calculating machine, calculating mechanism including actuatingmechanism, a keycontrolled escapement carriage, selector mechanisms forcontrolling the operation of said actuating mechanism, operatingconnections between the said'selector mechanisms and the respectivekeys, means operatively connected with the"said selector mechanisms forreturning the carriage thereby, means for rendering the recording keymechanism inactive during the return of the carriage, means for alsorendering the said actuating mechanism inactive during such movementofthe carriage, and means common to both of the last said means forsimultaneously controlling the same.

7. In a calculating machine, the combination with calculating mechanismincluding actuating means, of a key-controlled escapement carriage,selectormechanism for controll ng the operatlon of said actuating means,carriage-returning mechanism, means for controlling said mechanism toreturn the carriage from any point of its advancement, and means foralso controlling said carriagereturn'ing mechanism from said selectormechanism to return the carriage to a predetermined point from any pointof its advancement.

8. In acalculating machine, the combina-- tion with calculatingmechanism including actuating means, of a key-controlled escapementcarriage, selector mechanism for controlling the operation of saidactuating means, carriage-returning mechanism including a device adaptedto be set by the advancement of the carriage, means for controlling saidcarriage-returning mechanism through said device to return the carriageto any point of its advancement, and means for also controlling saidcarriage-returning mechanism from said selector mechanism to return thecarriage to a predetermined point from any point of its advancement.

9. In a calculating machine, the combination with calculating mechanismincluding actuating means, of a key-controlled escapement carriage,selector mechanism for controlling the operation of said actuatingmeans, carriage-returning mechanism including a device adapted to be setby the advancement of the carriage for returning the latter, normallyinactive mechanism for acting on said device to return the carriage,means for controlling said device at will, and means for alsocontrolling said carriagereturning mechanism from said selectormechanism to return the carriage to a predetermined point from any pointof its-advancement.

:10. In a calculating machine, calculating mechanism including actuatingmechanism, a key controlled escapement carriage, selector mechanisms forcontrolling the operation of the said actuating mechanism, operatingconnections between the selector mechanisms and the said keys foroperating thelatter, and meanscooperating with the said selectormechanisms for returning the carriage to a predetermined point from anypoint of its advancement.

11. In a calculating machine, calculating mechanism including actuatingmechanism, a key controlled escapement carriage, selector mechanisms forcontrolling the operation of the said'actuating mechanism, operatingconnections between the selector mechanisms and the said keys foroperating the-latter,ineans cooperating with the said selectormechanisms for returning the carriage to a predetermined point from anypoint of its advancement, and means for controlling the last said meansat will.

12. In a calculating machine, calculating mechanism including actuatingmechanism, a key controlled escapement carriage, selector mechanisms forcontrolling the operation of the said actuating mechanism, operatingconnections between the selector mechanisms and the saidkeysforoperating the latter, means cooperating with the said selectormechanisms for returning the carriage to a predetermined point from anypoint of-its advancement, means for controlling the last saidmeans, andmeans for rendering the said actuating mechanism inactive during suchreturn of the carriage.

13.111 a calculating machine, calculating mechanism including actuatingmechanism, a key controlled escapement carriage, selector mechanisms forcontrolling the operation of the said actuating mechanism, operatingconnections between the s'electormechanisms and the said keys foroperating the latter, means cotiperating with the said selectormechanisms for returning the carriage to a predetermined point fromany'point of its advancement, and means for rendering the saidconnections inactive during such return of the carriage.

1 1. In a calculating machine, calculating mechanism including actuatingmechanism, a key controlled escapement carriage, selector mechanisms forcontrolling the operation of the said actuating mechanism, operatingconnections between the selector mechanisms and the said keys foroperating the latter, means cooperating with the said selectormechanisms for returning the carriage to a predetermined point from anypoint of its advancement, means for rendering the said connectionsinactive during the return of the carriage, and means for rendering thesaid actuating means inactive during such return movement.

15. In a calculating machine, calculating mechanism including actuatingmechanism, a key controlled escapement carriage, selector mechanisn'isfor controlling the operation of the said actuating mechanism, operatingconnections bet-ween the selector mechanisms and the keys of thetypewriter for operating the latter, means cooperating with the saidselector mechanisms for returning the typewriter carriage'to apredeterminedpoint from any point of its advancement, means forrendering the said connections inactive during the return of thecarriage, means for rendering the said actuating means inactive duringsuch movement of the carriage and means common to both of thelast twosaid means for controlling the latter at will.

16. In a calculating machine, calculating mechanism including actuatingmeans, a key controlled escapement carriage, selector mechanisms, anoperating connection between the latter and the said actuating means,operating connections between the selector mechanisms and the said keysfor actuating thelatter, keys for controlling the 110 selectormechanisms, an operating connection-betweenthe selector mechanisms andthe carriage, whereby the operation of the selector mechanism willreturn the carriage, and means forrendering one of the con nectionsbetween the selector mechanisms and the said actuating means and thecarriage respectively, active and the other inactive.

17. In a calculating machine, registering mechanism, actuating meanstherefor movable toward and away from the'registering mechanism into andout of operating position, shifting mechanism for imparting suchmovements to the actuating means, selector mechanisms, a key controlledescapement carriage, operating connections between the selectormechanisms and the keys for actuating the latter, means operativelyrelated to the said selector mechanisms for returning 1-30 the carriageto a predetermined point from its point ofadvancement, .lliettllS forcon-, trolling thelast said means to return the carriage, and mechanismfor rendering the said, shifting mechanism inactive during such returnmovement of the carriage.

l8. In'a calculating machine, registering mechanism, actuating means:therefor movable toward and away from the registering mechanism into andout of operating position, shifting mechanism for imparting suchmovements to ,the actuating means, selector mechanisms, a key controlledescapement carriage, operating connections between the selectormechanisms and the carriage actuating keys for actuating the latter,means operat-ively related to the said selector mechanisms for returningthe cars riage to a predetermined point from" its point of advancement,means for controlling thelast said means to returnthe carriage, andmechanisms for respectively rendering said shifting mechanism and thesaid connections' inactive during such return of the carriage. V I I 19.In a calculating machine, registering mechanism, actuating meansthereformova-ble toward and away from theregistering niechanisminto andout vof operating posi-' tion, shifting mechanism for imparting suchmovements to the actuating means, selector mechanisms, a key controlledescapement carriage, operating connections between the selectormechanisms and the carriage actuatmg keys for actuating the latter,means oper-.

atively related to the said selector mech anisms for returningthe'carriage to a predetermined point from its point of advancement,means for controlling the last said means to return the carriage,'a key,and mechanisms adapted to be operated thereby for respectively renderingsaid shifting mechanism and the said connections inactive during suchreturn of the carriage. i

20. In a calculating machine, calculating mechanism embodying actuatingmeans, selector mechanism for controlling the latter, a key controlledescapement carriage, operating connections between the selectormechanisms and the carriage actuating keys for actuating thelatten: asource of power forthe selector mechanisms, keys for controlling saidselector mechanisms and said source of power, means adapted to be set bythe advancement of the carriage for returning the latter, meansoperatively related to the said source of power for operating the lastsaid means to return the carriage, and means for controlling the lastsaid means and the source of power to actuate the former.

21. In a calculating machine, calculating mechanism embodying actuatingmeans, selector mechanisms for controlling the latter, a key controlledescapement carriage, op-

the carriageymeans for controlling the last said means .and the sourceof power to ac tuate the former, and means operatively related to thelast. said controlling means for rendering the said connections inactivedur ing the return of the carriage, V V v. V l

22. In a calculating machine, calculating mechanism; embodying actuatingmeans, se-

lector mechanisms for controlling thelat-r ter, a key controlled,escapement carriage, operat ng connections between 7 the selectormechanisms andthe carriage actuating keys for actuating the latter, asource of power witlrwhich the said selector mechanisms are operatively;connected, mechanism opera tively" connected with the selector,mechanisms for returning the carriage to a predetermined point, meansfor rendering active one of the respective connections between thesource of power and. the selector mechanisms, and the first saidactuating means and the other inactive, and means common to the selectormechanisms and the said source of power forcontrolling both.

"23. In a calculatingmachine, calculating mechanism embodying actuatingmeans, selector mechanisms for controlling the latter, key controlledescapement carriage, operating connections between the selectormechanisms and the carriage actuating keys for actuating the latter, asource of power with which jthe'said selector mechanisms are operatively connected, mechanism operatively connected with the selectormechanisms for returning the carriage to a predetermined point, meansfor rendering active one of the respective connections between thesource of power and the selector mechanisms and the first said actuatingmeansand the other inactive, and means for controlling the said sourceof powerat will. 24.. In a calculating machine, calculatlng mechanlsmembodylng actuating means, se

lector mechanisms for controlling the latter, 7

a key controlled escapement carriage, operating connections between theselector mech anisms and the carriage actuating keys for actuating thelatter, a source of power with which the said selector mechanisms areoperatively connected, mechanism operatively connected with the selectormechanisms for returning the carriage to a predetermined point, meansfor rendering active one of the respective connections between thesourccof power-and the selector mechanisms, and the first said actuating meansand the Other inactive; means common to the selector mechanisms and thesaid source of power for controlling both, and means for renderinginactive the operating. connections between the selector mechanisms andthe carriage actuating keys for rendering the latter inactive during thereturn movement of the carriage.

25. In a calculating machine, calculating mechanism, actuating mechanismtherefor, selector mechanisms for controlling the lat ter, a keycontrolled escapement carriage, operating connections between theselector mechanisms and the key mechanism, means including a gearconnection between the selector mechanisms and the first said actuatingmeans for operating the latter, means also including a gear connectionbetween the selector mechanisms and the carriage for returning thelatter to a predetermined point, and means for rendering one of saidgear connections active and the other inactive.

26. In a calculating machine, calculating mechanism, actuating mechanismtherefor, selector mechanisms for controlling the lat ter, a. keycontrolled escapement carriage, operating connections between theselector mechanisms and the key mechanism, means including a gearconnection between the se lector mechanisms and the said actuating meansfor operating the latter, means also including a gear connection betweenthe se lector mechanisms and the carriage for returning the latter to apredetermined point, and means common to both of said connections forsimultaneously rendering one active and the other inactive.

27. In a calculating machine, calculating mechanism, actuating mechanismtherefor, selector mechanisms for controlling the latter, a keycontrolled escapement carriage,

operating connections between the selector mechanisms and the keymechanism. means including a gear connection between the selectormechanisms and the said actuating means for operating the latter, meansalso including a gear connection between the selector mechanisms and thecarriage for returning the latter to a predetermined point, a clutchelement common to both of said gear connections and means for shiftingsaid element to render one of said connections active and the otherinactive. I

28. In a calculating machine, calculating mechanism, actuating mechanismtherefor, selector mechanisms for controlling the latter, a keycontrolled escapement carriage, operating connections between theselector mechanisms and the key mechanism, means including a gearconnection between the selector mechanisms and the said actuating meansfor operating the latter, means also including a gear connection betweenthe se lector mechanisms and the carriage for returning the latter to apredetermined point, means including an actuating element for renderingone of said gear connections active and the other inactive and meansoperatively related to the said element for rendering the connectionsbetween the selector mechanisms and the key mechanism inactive when thesecond recited gear connection is rendered active.

29. In a calculating machine, calculating mechanism, actuating mechanismtherefor movable toward and away from the calculating mechanism into andout of operating position, shifting mechanism for imparting suchmovements to the actuating mechanism, a source of power for actuatingthe shifting mechanism, a key controlled escapement carriage, selectormechanisms operatively connected with said source of power, meansincluding a gear connection between the selector mechanisms and thefirst said actuating mechanism for operating the latter,

means also including a gear connection between the carriage and the saidselector mechanism for returning the carriage, controlling mechanism forrendering one of the said gear connections active and the otherinactive, and mechanisms actuated by said controlling mechanism forrendering the connections between the selector mechanisms and the keymechanism inactive and for also rendering the said shifting mechanismin-- active'when the second recited gear connection is rendered active.

30. In a calculating machine, calculating mechanism, actuating mechanismtherefor movable toward and away from the calculating mechanism into andout of operating position, shitting mechanism for imparting suchmovements to the actuating mechanism, a source of power for actuatingthe shifting mechanism, a key controlled escapement carriage, selectormechanisms operatively connected with said source of power, meansincluding a gear connection between the se lector mechanisms and thefirst said actuating mechanism for operating the latter, means alsoincluding a gear connection between the carriage and the said selectorIllGCl'lZllllSHl for returning the carriage, controlling mechanism forrendering one of the said gear-connections active and the otherinactive, mechanisms actuated by said controlling mechanism forrendering the connections between the selector mechanisms and the keymechanism inactive and for also rendering the said shifting mechanisminactive when the second recited gear connection is rendered active, andmeans included in the gear connection between the selector mechanismsand said first-mentioned actuating mechanism for controlling said sourceof power at will.

a 31. In a calculating machine, calculating

